What are you meaning crab? Not pixelart? What are you basing that on? Me, my mouse and graphicsgale thinks otherwise. I wouldn't have posted something here that I haven't pixeled...
I thought the other guys had explained well enough, but, ok, this isn't pixel art because it shows no attention on the pixel level. There's no AA, no use of pixel techniques, and your pixel steppings don't show much care to reduce unnecessary jaggies to show a few reasons. I said that mostly because you said you were satisfied with this when you should not be satisfied at all because the pixels still need a lot more attention. I'd seriously consider shrinking to as much as a quarter of the original and proceed from there. Pixels get more interesting at the lower scales as you are forced to choose what information you want/need to show
I'd still like to know if there was a ref. It looks like there was a ref used, which would be useful for seeing if you captured the look and feel of the original.
